Komatsu GD755-5R Motor Grader Operation and Maintenance Manual (PEN00558-10)
Out on road-building or maintaining haul roads, this GD755-5R grader spends its life cutting, shaping, and finishing surfaces in dusty, vibrating conditions. This manual is what I keep handy to set a solid maintenance rhythm and operate the machine without abusing it. When a blade won’t hold grade or the steering feels loose, I use this book to walk the operator and myself through the right checks, in the right order, so we can trace issues early instead of waiting for a breakdown.
Applications & Use Cases
- Plan daily, weekly, and seasonal inspections so you spot leaks, loose hardware, and wear points before they sideline the grader.
- Verify correct start-up, shutdown, and warm-up habits to reduce cold-start wear and extend component life.
- Trace grading performance issues back to basic items like tire condition, articulation joints, and blade linkage.
- Align operator practices with maintenance needs, so the machine isn’t overworked in poor ground or slope conditions.
- Coordinate shop and field service, knowing what checks can be done roadside and what should wait for the workshop.
FAQ
Q: Can I use this manual on a tablet in the cab?
A: Yes, it’s well-suited to digital use; you can zoom diagrams and search text while you’re parked on-site.
Q: Is it worth printing parts of this?
A: I’d print key inspection and service pages, laminate them, and keep them in the service truck for quick reference.
Safety Note
Always follow the manual’s safety steps before inspecting, adjusting, or working under any raised component.
📘 Show Index
Komatsu GD755-5R Motor Grader Index:
- COVER
- FOREWORD
- READ THIS MANUAL
- SAFETY INFORMATION
- INTENDED USE
- USE OF MACHINE
- DIRECTIONS OF MACHINE
- VISIBILITY FROM OPERATOR’S SEAT
- LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR
- PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE
- ENGINE NUMBER PLATE
- SERVICE METER POSITION
- TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR
- CONTENTS
- SAFETY
- SAFETY INFORMATION
- SAFETY LABELS
- POSITION FOR ATTACHING SAFETY LABELS
- SAFETY LABELS
- GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE
- PRECAUTIONS BEFORE STARTING OPERATION
- PREPARATIONS FOR SAFE OPERATION
- FIRE PREVENTION
- PRECAUTIONS WHEN GETTING ON OR OFF MACHINE
- DO NOT GET CAUGHT IN WORK EQUIPMENT
- PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES
- UNAUTHORIZED MODIFICATION
- PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS
- PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING
- PRECAUTIONS FOR OPERATION
- PRECAUTIONS FOR JOBSITE
- STARTING ENGINE
- OPERATION
- TRANSPORTATION
- TOWING
- PRECAUTIONS FOR MAINTENANCE
- PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE
- PRECAUTIONS FOR INSPECTION AND MAINTENANCE
- TIRES
- OPERATION
- GENERAL VIEW
- GENERAL VIEW OF MACHINE
- GENERAL VIEW OF CONTROLS AND GAUGES
- EXPLANATION OF COMPONENTS
- MONITOR PANEL
- OTHER FUNCTIONS OF MACHINE MONITOR
- SWITCHES
- CONTROL LEVERS, PEDALS
- DUST INDICATOR
- ARTICULATE LOCK PIN
- FUSE BOX
- SLOW BLOW FUSE
- CIRCUIT BREAKER
- AIR CONDITIONER
- OPERATION MANUAL STORAGE
- TOOL BOX
- GREASE PUMP HOLDER
- OPENING, CLOSING CAB DOORS
- BACKUP ALARM
- CUP HOLDER
- ASHTRAY
- FIRE EXTINGUISHER
- OPERATION
- CHECK BEFORE STARTING ENGINE
- STARTING ENGINE
- OPERATIONS, CHECKS AFTER STARTING ENGINE
- STOPPING ENGINE
- TRAVELING POSTURE FOR MACHINE
- MOVING MACHINE OFF (FORWARD, REVERSE, SHIFTING GEAR), STOPPING
- TURNING MACHINE
- OPERATING WORK EQUIPMENT
- WORK WHICH CAN BE CARRIED OUT USING A MOTOR GRADER
- PRECAUTIONS WHEN OPERATION
- ADJUSTING WORK EQUIPMENT POSTURE
- PARKING MACHINE
- CHECKS AFTER COMPLETION OF OPERATION
- LOCKING
- HANDLING THE TIRES
- EMERGENCY STEERING
- TRANSPORTATION
- STEPS FOR TRANSPORTATION
- LOADING, UNLOADING WORK
- PRECAUTIONS FOR LOADING
- LIFTING MACHINE
- COLD WEATHER OPERATION
- PRECAUTIONS FOR LOW TEMPERATURE
- CAUTIONS AFTER COMPLETION OF WORK
- AFTER COLD WEATHER
- LONG-TERM STORAGE
- BEFORE STORAGE
- DURING STORAGE
- AFTER STORAGE
- TROUBLESHOOTING
- AFTER RUNNING OUT OF FUEL
- WHEN LEANING PIPING IS DAMAGED
- IF THE GEAR SHIFT LEVER OF THE TRANSMISSION HAS ANY TROUBLE
- TOWING THE MACHINE
- IF BATTERY IS DISCHARGED
- OTHER TROUBLE
- MAINTENANCE
- GUIDES TO MAINTENANCE
- OUTLINES OF SERVICE
- HANDLING OIL, FUEL AND COOLANT, AND PERFORMING OIL CLINIC
- RELATING TO ELECTRIC SYSTEM
- WEAR PARTS
- RECOMMENDED FUEL, COOLANT, AND LUBRICANT
- USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE
- RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN KOMATSU GENUINE OIL
- STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS
- PERIODIC REPLACEMENT OF CRITICAL PARTS
- MAINTENANCE SCHEDULE CHART
- MAINTENANCE SCHEDULE CHART
- SERVICE PROCEDURE
- INITIAL 250 HOURS SERVICE (ONLY AFTER THE FIRST 250 HOURS)
- WHEN REQUIRED
- CHECK BEFORE STARTING
- EVERY 50 HOURS SERVICE
- EVERY 250 HOURS SERVICE
- EVERY 500 HOURS SERVICE
- EVERY 1000 HOURS SERVICE
- EVERY 2000 HOURS SERVICE
- EVERY 4000 HOURS SERVICE
- EVERY 8000 HOURS SERVICE
- EVERY 1 YEAR SERVICE
- SERVICE AT OVERHAUL
- SPECIFICATIONS
- ATTACHMENTS, OPTIONS
- HANDLING BLADE ACCUMULATOR
- FEATURES OF BLADE ACCUMULATOR
- METHOD OF OPERATING BLADE ACCUMULATOR
- CAR RADIO
- EXPLANATION OF COMPONENTS
- METHOD OF OPERATION
- PRECAUTIONS FOR USE
- KOMTRAX
- INDEX
Link Belt
